- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 1/12 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
Patent holdings for IPC class F28F 1/12
Total number of patents in this class: 765
10-year publication summary
|
78
|
94
|
67
|
67
|
59
|
48
|
53
|
38
|
44
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47602 |
39 |
| Valeo Systemes Thermiques | 2810 |
28 |
| Carrier Corporation | 3964 |
26 |
| Hanon Systems | 2069 |
22 |
| Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. | 150 |
22 |
| Denso Corporation | 25183 |
20 |
| Daikin Industries, Ltd. | 10384 |
20 |
| LG Electronics Inc. | 74968 |
19 |
| MAHLE International GmbH | 2883 |
19 |
| Samsung Electronics Co., Ltd. | 153845 |
16 |
| Modine Manufacturing Company | 306 |
13 |
| UACJ Corporation | 723 |
11 |
| Danfoss Micro Channel Heat Exchanger (Jiaxing) Co. Ltd. | 89 |
8 |
| Rtx Corporation | 9875 |
8 |
| DENSO International America, Inc. | 632 |
7 |
| Hamilton Sundstrand Corporation | 5017 |
7 |
| Evapco, Inc. | 304 |
7 |
| Trane International Inc. | 1214 |
7 |
| Danfoss A/S | 1398 |
7 |
| Johnson Controls Light Commercial IP GmbH | 370 |
7 |
| Other owners | 452 |